Delhi's air quality improved to 'moderate' with an AQI of 179 at 7 am on Saturday after continuous rain. The air quality shifted from 'severe' to 'poor' on Friday before improving further. Pollution curbs under GRAP-3 were revoked on Friday as conditions eased. The IMD recorded 13.8°C at 5:30 am, with a low of 12°C expected on Saturday.